This result is, in fact, as we have already mentioned, a particular case of
Theorem REF  (which, in turn, follows from Theorem REF ).
In particular, that theorem covers also the case of inverse square potentials, which have
been studied recently in [1]}, [2]}, [3]}, [4]}, [5]}. We also consider
uniformly strongly elliptic operators of order \(2m\) .
This result generalizes a similar regularity result in [6]}. Our results
generalize immediately to systems.
